baber/WOPTO huggingface dataset:
Patent GB-1253601-A (GB)
Title: Bone compression device
Inventor: HALLORAN WILLIAM XAVIER
IPC: A61B17/60
Filed: 1969-03-10
Abstract: 1,253,601. Bone compression device. W. X. HALLORAN. 10 March, 1969 [17 June, 1968], No. 12485/69. Heading A5R. [Also in Division E2] A bone compression device comprises a pair of arms 65, 67, a pair of couplings 71, 73 on each arm, two screws 79, each extending between a coupling on one arm and another coupling on the other arm and a rod 91, 93 extending from each arm 65, 67. The rods are adjustable and are held in vertical bores within the arms 65, 67 by screws 95 and 97. In an alternative embodiment (Figures 3-5) the rods (111, 113) are held within vertical tubes (105, 107) mounted on the outside of the arms 65, 67. The rods (111, 113) which in use both extend into bores provided in the bone are formed with a series of peripheral corrugations 121.
Patent GB-234480-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J1/13
Filed: 1925-05-14
Abstract: 234,480. Hawadier, J. May 26, 1924, [Convention date]. Vacuum tubes. - A valve, has its cathode heated by a secondary filament connected to alternating - current supply mains, the cathode being then raised to the temperature of emission by means of a low-tension battery which mav be of small size. The secondary filament A, which is connected by leads C to the mains supplying alternating current, is enclosed in a tube of quartz M on which the cathode B is coiled. The heat of the filament A transmitted through the quartz raises the temperature of the cathode, a low-tension battery D being used to increase the temperature to the point necessary for the emission of electrons.
Patent GB-1291035-A (GB)
Title: Chainsaw oil pump
Inventor: DAVISON FRANK
IPC: F04B53/16
Filed: 1971-05-01
Abstract: 1291035 Chain saw lubrication F DAVISON 1 May 1971 12572/71 Heading B5L [Also in Division F1] A pump for supplying lubricating oil to the cutting chain of a chain saw comprises a spring- loaded piston F reciprocated by an eccentric or cam B on the chain saw engine crank-shaft A, the piston controlling an inlet port J in the cylinder H, which is axially movable by screw T in plug W to adjust the effective stroke of the piston. The pump draws oil from reservoir N via inlet O, and delivers it to the chain guide bar mounting S via check valve K, port M and passage P. 0-rings V 1 , V 2 , V 3  prevent leakage.
Patent GB-165608-A (GB)
Title: Improvements in or relating to collapsible frame-structures
IPC: E04B1/26
Filed: 1920-05-06
Abstract: 165,608. Milestone, D. N. May 6, 1920. Mechanical constructions, details for building up.-A dismountahle structural frame suitable for houses, huts, or toys comprises at each corner a single block 13 with apertures to receive two or more bars, one aperture, intersecting one or more of the others so that the bar 10 for example, in such aperture, locks the remaining bars by engaging in notches therein. The locking-bar may be secured by a dowel pin 20, and marks 21, 22 may be made on the bars and block to facilitate assembly. The bars may be solid or hollow and of any shape in section, and may be made of wool, metal,. or other material. One or more of the blocks may be made in halves joined together after the bars are in place. The covering may be flexible, such as canvas, or rigid, such as wooden battens or sections.
Patent GB-856450-A (GB)
Title: Improvements relating to marine pipeline installations comprising a raft structure
IPC: F16L1/12
Filed: 1958-04-21
Abstract: 856,450. Pontoon rafts. WALLACE, W. April 21, 1959 [April 21, 1958], No. 12610/58. Class 113. [Also in Group XXVIII] An open girder raft structure 13 for supporting pipe lines 18 (see Group XXVIII) is supported on cylindrical pontoons 12, each rotatable about its central axis. The raft structure may be brought to an apex at which a pivotal flexible or universal joint is provided for connecting rafts end to end, or each end may have a ring structure to provide a swivel joint about a common centre. In the embodiment shown each end is provided with a fender as also shown in Fig. 4. One fender comprises rings 20 carrying rollers 21 corresponding to recesses 23 in castellated rings 24 on the rings 25 of the other fender. Two rafts may be connected end to end by a cable 27 passing round grooves 26 between the rings 20 and 25 and anchored at 28 and 29, and by a similar cable 30.
Patent GB-618059-A (GB)
Title: Improvements in the discharge mechanism for wet separating devices
IPC: B03B5/24
Filed: 1946-04-26
Abstract: 618,059. Washing granular material. STEVENS, A. H. (McNally-Pittsburgh Manufacturing Corporation). April 26, 1946, No. 12612. [Class 82(ii)] A gate mechanism for a wet separating device has a number of elements capable of vertical movement with respect to the flow of heavy constituents, the lower limit of the elements being controlled by a vertically adjustable support. As shown, applied to a jig washer, the lower position gate elements 28 fixed to bars 16 pivoted on a shaft 20 are controlled by a vertically adjustable support 30. Each gate element may move vertically to allow a larger portion of heavy material to pass and is returned to its normal position by its own deadweight. The support 30 may be automatically controlled by a piston 56, bar 52, Z-shaped bar 40, shaft 36 and counterweights 48 and 34, fine adjustment being made by a weight 58 on a graduated arm of the Z-shaped bar. In a modification, Fig. 5 (not shown), the elements have a slit through which passes the adjustable support. In a further modification, Figs. 3 and 4 (not shown), the elements have lugs resting on the support and are guided by pins passing through central holes.
Patent GB-647199-A (GB)
Title: Frequency discriminators
IPC: H03D9/04
Filed: 1947-05-09
Abstract: 647,199. Automatic frequency control. STANDARD TELEPHONES & CABLES, Ltd. May 9, 1947, No. 12617. Convention date, May 13, 1946. [Class 38 (iv)] [Also in Group XXXVI] A frequency discriminator comprises a transmission line which is terminated by a resonant circuit or cavity, and means for comparing the voltages derived from two probes spaced along the line. High-frequency energy is applied at input end 3 of transmission line 1, which is terminated by resonant cavity 2, the impedance of this cavity not being equal to the characteristic impedance of the line so that standing waves are produced. High-frequency voltages at two points along the line produced at probes 6 and 7 are rectified, the resulting direct currents being applied in opposition to resistor 12. Anv change in frequency produces a change in the standing wave and therefore of the potential across resistor 12, which may be amplified in amplifier 13 and used for measurement or for the stabilization of an oscillator. The use of the resonant cavity 2 greatly increases the sensitivity of the arrangement. Specification 21929/47 (as open to inspection under Sect. 91) is referred to.
Patent GB-994769-A (GB)
Title: Purification of terephthalic acid
IPC: C07C51/487
Filed: 1964-03-25
Abstract: Fibre-grade terephthalic acid is produced from an impure terephthalic acid containing 4-carboxy-benzaldehyde by catalytically hydrogenating said impure terephthalic acid in an aqueous solution at elevated temperature and pressure for a time sufficient to effect substantial reduction of said 4-carboxy-benzaldehyde, and recovering a terephthalic acid of fibre-grade quality.  The hydrogenation may be effected within the range of 200 DEG  to 400 DEG  C. for 0.005 to 10 hours, particularly with a Group VIII metal catalyst, several catalysts being specified. The hydrogenation may be carried out as a batch process under static conditions, as in a sealed autocalve, or by bubbling hydrogen into the aqueous solution, or the aqueous solution of impure terephthalic acid may be percolated through a bed of hydrogenation catalyst while maintaining either a static hydrogen atmosphere or a flow concurrent or counter-current of hydrogen through the catalyst chamber.  The product is obtained by cooling the aqueous solution and separating terephthalic acid crystals. The impure terephthalic acid may be made by liquid phase air oxidation of p-xylene, using a heavy metal and bromine as catalyst as in Specification 807,901, or using heavy metal catalysts promoted with acetaldehyde or methyl ethyl ketone, or the impure acid from the nitric acid oxidation of p-xylene, or from the isomerization of dipotassium phthalate or the disproportionation of potassium-benzoate may be similarly treated if carboxybenzaldehyde or reducible impurities are present.
Patent GB-143501-A (GB)
Title: Apparatus for shifting inclined tooth change wheels of change speed gears for motor cars
IPC: F16H3/06
Filed: 1920-05-07
Abstract: 143,501. Aichele, A. May 19, 1919, [Convention date]. Connecting and disconnecting arrangements. - Helical toothed wheels used in variable-speed gearing for motor-cars are moved axially along their shafts and locked in end position to relieve thrust on the actuating-levers by means of balls h engaging holes in a sleeve c on the wheel &c. b and engaging recesses k or an annular groove in an actuating-sleeve f, until the balls pass over and enter recesses m in the shaft e, when the sleeve f passes on and locks the balls and the sleeve c in position. The sleeve c may pass slightly beyond its final position and strike a collar o on the shaft before the balls enter the recesses m. The shaft e and sleeve f may be external and internal respectively to the sleeve c. A double wheel b, q, Fig. 5, may be locked in two end positions to engage a wheel a or a wheel r by duplicating the arrangement and by axially elongating the recesses k<1>, k<2> in the actuating-sleeves f. The sleeve f engages the wheel b and a stop s on the sleeve c at the end of its travel, which stops may be dispensed with if the sleeve f has flanges t', t<2> for engaging the balls. Pawls or other locking-bodies may be substituted for the balls. The Specification as open to inspection under Sect. 91 (3) (a) comprises the application of the invention to the locking of toothed wheels generally. This subject-matter does not appear in the Specification as accepted.
Patent GB-165612-A (GB)
Title: Improvements in apparatus for the manufacture of ice
IPC: F25C1/00
Filed: 1920-05-07
Abstract: 165,612. McOustra, J., and Farring- don Works & H. Pontifex & Sons, Ltd. May 7, 1920. Ice-making; plate systems and apparatus.-The plates " are formed by vertically disposed sinuous tubes with alternate spaces between the straight lengths enclosed by flat strips f, Fig. 2, or filled in by moulded material h, Fig. 4. The flat strips may be welded on to the tubes, which preferably project above the water-level and into the insulation at the bottom of the tank. The cavities formed by the strips may be covered at the top and bottom, or may bei filled with brine or other liquid or solid material. For thawing-off, the brine in the cavities may be warmed, or warm brine may be circulated therethrough, thus avoiding the use of the coils themselves for both freezing and thawing. The ice-blocks b are thawed from the bottom plate i of the tank by circulating steam through a sinuous pipe j located in channels k adjacent to the freezing coils, and the blocks of ice are lifted upwards from the plates by means of frozen-in loops or hooks.
Patent GB-1159376-A (GB)
Title: Improvements in or relating to Cured High Temperature Stable, Epoxy Compounds
IPC: C08G59/42
Filed: 1968-03-15
Abstract: 1,159,376. Curing epoxy resins. KOPPERS CO. Inc. 15 March, 1968 [29 March, 1967], No. 12748/68. Heading C3B. Epoxy resins are cured using mellophanic dianhydride, i.e. 1,2,3,4-benzene tetracarboxylic acid dianhydride. The hardener may be dissolved in the resin, e.g. a diglycidyl ether of bisphenol A, at a temperature >60 C. The resultant cured castings are clear and have high heat distortion temperatures.
Patent GB-468303-A (GB)
Title: An improved surgical pump
IPC: F04C27/02
Filed: 1936-05-07
Abstract: 468,303. Gear pumps. MAYHOOK, J. L. May 7, 1936, No. 12841. [Class 110 (ii)] A surgical pump for drainage operations comprises a gear pump 1, a fluid receiver 28, a suction pipe 42 connected to a patient, and air suction and delivery pipes 27, 33. A driving shaft 10 has a sealing ring 12 of felt or leather enclosed within a shroud ring 13 screwed to the casing cover 4a. A washer 15, which may be cork, is inserted. A gear - wheel sleeve 9 may be formed with a reverse thread where it engages the cover 4a. The pump has suction and delivery ports 19, 20 respectively. The latter discharges to an oil reservoir 29, air passing off through an outlet 30. A baffle 34 prevents oil spray passing off with the air. 35a is a dipping rod. With the pump at rest oil seeps through a restricted orifice 40 from the reservoir 29 until the oil levels in the gear case and reservoir are the same. A nipple 36 allows oil from the reservoir to pass into the suction chamber via a passage 38. Lubrication of the bearing of the upper gear 6 is effected through a port 44.
Patent GB-916356-A (GB)
Title: Folding container for fruit and the like
IPC: B65D85/34
Filed: 1961-04-10
Abstract: 916,356. Collapsible, stackable cartons. CLEMENS, L. April 10, 1961 [July 22, 1960; Aug. 12, 1960; Jan. 31, 1961], No. 12868/61. Class 18. A carton of flat or corrugated cardboard or of chipboard, or of osier work, comprises a base 13 and four sides 14 which fold upwardly therefrom and has corner supports 19a, 19b each secured to adjacent sides, the supports being clipped or stuck together when the carton is erected. Members 31 stuck to the underside of the base provide an edge 34 against which the top of a support is located when the cartons are stacked. The supports may be held together by a clamp 53 as shown or by a ring, string wire, a nail, a staple, a strip steel staple, an adhesive, a cap, or a pin. The supports may be of cardboard, a plastic, or metal. The sides and/or the base may be reinforced by strips 22 and the top edges of the sides may be covered with water repellant strip. The carton may be impregnated to increase its strength. A cover 42 may be secured by string or wire 47 and rests on ledges 45 on the inside of the sides. Members 44 reinforce the edges of the cover and an alternative means of securing the cover comprises pegs passing through holes in members 41, 44.
Patent GB-351642-A (GB)
Title: Improvements in or relating to wheel hubs
IPC: B60B27/00
Filed: 1930-04-26
Abstract: 351,642. Vehicle wheel hubs. BUDD WHEEL CO., 25th Street, Philadelphia, U.S.A.-(Assignees of Farr, W. H. ; 12141E, Charlevoix Avenue, Detroit, Michigan, U.S.A.) April 26, 1930, No. 12899. Convention date, April 27, 1929. [Class 144 (i).] The hub-flange F is formed separately from the barrel B\ the parts being butt-welded together preferably on a conical surface S. In the construction shown, the root R of the flange is formed integral with the barrel B<1>.
Patent GB-449425-A (GB)
Title: Mechanical toy
IPC: A63H18/14
Filed: 1935-05-01
Abstract: 449,425. Toys. ARNOLD, C., 47, Deutschherrnstrasse, Nuremberg, Germany. May 1, 1935, No. 13028. [Class 132 (iii)] A toy vehicle is moved backwards and forwards in a straight line on an endless moving member and another toy is coupled with and uncoupled from the toy vehicle at its extreme points of travel to be drawn along or pushed by the toy vehicle. A toy locomotive 17 has a slot 18 engaging with a bent plate 16 simulating part of the locomotive and attached to an endless chain or rubber member 9 passing round discs 7 and 7<1>, the disc 7<1> being driven by the chain 10 and star wheels 3 and 8 from the motor 2. The motor 2 may drive the discs 7, 7<1> directly or the chain drive can be replaced by bevel gearing. The driving mechanism is covered by a slotted plate 14 having mounted on it apertured houses 15. A toy waggon 19 is connected to the locomotive 17 by coupling hooks 20, 21 and at the end of the forward travel of the locomotive is uncoupled therefrom and after the locomotive has been turned through 180‹ by the driving mechanism is shunted backwards to be coupled up at the end of the backward movement. The waggon 19 is guided by a plate 22 engaging in the slot in the plate 14.
Patent GB-663070-A (GB)
Title: Improvements in dispensers for condiments or other powdered or granulated materials
IPC: A47G19/34
Filed: 1948-05-13
Abstract: 663,070. Powder distributers. COLTON, L. H. June 13, 1949 [May 13, 1948], No. 13096/48. Class 18. A dispensing container for condiments or other powdered or granular materials comprises a plunger valve 6a located in an aperture 2a in a base 2 and movable therethrough, by pressure on a button 7, to eject powder collected around a circumferential groove 6c or to allow the contents to escape in a stream through an axial groove 6e in the valve head. The container 1, which is transparent, is closed by a base 2 and cap 3 and the valve 6a is held closed by a spring 5.
Patent GB-310846-A (GB)
Title: Improvements in sealing laminated glass
IPC: B32B17/10
Filed: 1929-04-27
Abstract: 310,846. Triplex Safety Glass Co. of North America, (Assignees of Bell, F. H.). May 1, 1928, [Convention date]. Compound transparent sheets. - A device for sealing the edges of compound sheets a of glass united to celluloid or like material comprises a rotated annular disc g' dipping into a trough of sealing liquid and delivering same into a groove c in the edge of the compound sheet. The disc is clamped between collars g<2>, g<4> keyed to the spindle h, which is driven by a belt h<2> and pulleys h<3>, h<1> from the motor h<4>. The sheet a is supported by a roller i and by the edges g<3> of the clamping collars. The sealing liquid is heated, as by a gas burner e, and a two-part apertured cover d<2> may be provided on the trough.
Patent GB-611557-A (GB)
Title: Improvements in electronic amplifiers for direct currents
IPC: H03F3/40
Filed: 1946-05-01
Abstract: 611,557. Photo - electric densitometers. KODAK, Ltd., ROSS, H. M., and SHURFREY, A. L. May 1, 1946, No. 13177. [Class 40 (iii)] [Also in Group XXXVI] In a circuit for comparing direct current signals, the signals are converted into alternating signals proportionate thereto in separate similar circuits, then amplified and applied in opposed directions simultaneously to measuring, indicating or controlling means, e.g. a cathoderay tube. For use as an optical densitometer or as a null-point indicator in an optical system with a lamp L, two photo-cells P with mirrors M give equal photo-voltages at the control grids of the first pair of valves V1, and an oscillatory voltage is applied to another grid of each valve so as to give to the anodes of the valves V1 an A.C. voltage proportional to the photo-voltages. These A.C. voltages are applied to a pair of amplifying valves V2, which have a large negative grid bias so that the valves V2 conduct only the most positive points of the A.C. voltages. The outputs of the valves V2 are applied to deflector coils or plates at right angles to one another in a cathode-ray tube so that the fluorescent spot traverses the tube screen at 45 degrees to either of these plates. The voltages are adjusted or an oscillatory voltage is added so that the line extends across the screen. For use as a densitometer the sample and an adjustable optical wedge are placed in the upper measuring side. The tube is rotated until the line is horizontal and at the null point the line is not moved up or down by increase or decrease of the light on the measuring side. The valves in the two circuits are fed from the same high-tension supplies. In Fig. 2, steady voltages are applied to the plates of the cathoderay tube by rectifying and smoothing the voltages appearing at the anodes of valves V2. In this case, the output on the measuring side is connected to one of the Y deflector plates and the output on the comparison side to the other Y plate. An oscillatory voltage is conveniently applied through leads HT2 to the X deflector plates to draw out the spot to a line. In Fig. 1, a condenser network C and a resistance R increase the brilliance of the fluorescent spot only when it moves across the screen, allowing the beam current to be greatly reduced when the spot is off the screen. In place of the cathode-ray tube, a meter or recording meter is connected between the anodes of valves V2 of Fig. 2 or an additional pair of valves is interposed between the valves V2 and the meter to amplify the current to the meter.
Patent GB-437647-A (GB)
Title: Improvements in and relating to granules of carbon black
IPC: C09C1/58
Filed: 1934-05-02
Abstract: <PICT:0437647/III/1> In the production from loose carbon black of granules or agglomerates, which can be more readily handled, have a greater density than the untreated material, have no tough outer coating and can be incorporated with rubber, oils, waxes, &c. without additional difficulty, the carbon black is first moistened with a temporary liquid binder, e.g. alcohol, benzol, gasoline, methanol, acetone or water, and formed into a stiff paste, in a mixing machine, the paste being then granulated and dried.  Carbon black from a conveyer A is moistered with water by sprayers D and formed into a friable, relatively dry paste by agitating propellors C. From the mixer B, the paste is fed between rollers E, F driven at slightly different speeds so that one becomes coated with a layer G of paste the thickness of which is adjusted by a screw H. Formation of the granules is effected by a rapidly rotating roller I provided with spikes J which remove the carbon black from the roller F in small pieces passing by way of a shoot L into a rotary drier M heated to 400 to 500 DEG  F.  In a modification, the paste is fed into the interior of a rotary perforated drum through which it is forced by flexible strips carried on rotating arms, the granules being formed by removing the material from the exterior by a scraper.
Patent GB-560058-A (GB)
Title: An improved device for automatically stopping electrically driven machinery in an emergency
IPC: F16P7/02
Filed: 1942-09-18
Abstract: 560,058. Machinery safety devices. BIRRELL, S. Sept. 18, 1942, No. 13209. [Class 80 (iv)] [Also in Group XXV] Consists in a device for automatically stopping electrically driven machinery in the event of an operator being drawn into or falling against the machine, or of a rotating body in the machine going adrift. As applied, e.g. to a wire stranding machine a tube 1 carries the spools 2 containing the wire. A metal rod or " teller " 3 is carried by insulating blocks mounted on springs 4 supported by the machine frame 5. An insulated conductor 6 which may be led up through one of the springs connects the teller 3 with the braking circuit 7 energized from the mains. An operator falling against the teller would cause it to contact with the machine frame and so influence the electrical circuits as to apply a brake and cut out the driving motor. The device may also function to stop the machine in the event of a strand or wire breaking, the mere contact of the wire 9 being sufficient to give the necessary current impulse to actuate the stop gear. This gear, Fig. 3, comprises a relay 10 adapted to be energized from the secondary 11a of a stepdown transformer 11 one end 12 being connected to the teller 3 the relay winding being earthed. Energizing the relay attracts an armature 13 on a strip 14 to close a circuit for actuating magnetic brakes 15 and, if desired, a pilot lamp 16. At the same time a holding relay 17 is energized to attract an armature 18 to maintain the braking and lamp circuit closed. The relays 10, 17 also attract armatures 19, 20 on a strip 21 in the motor circuit 23. The low voltage from the step-down transformer obviates risk of shock in the event of an operator touching a teller. In a modification, the teller comprises a long helical spring the ends of which are connected by short lengths of chain to an insulation block mounted on the machine frame. When the spring is dismantled, e.g. for inspection purposes, the short lengths of chain hang over the edges of short metal tubes enclosing the insulation blocks to close the stopping circuit.